Great Idea, my dad purchased the same thing before I did. He had the same trouble. The tape doesn't Hold the Plastic very well. I had to purchase another type of tape to hold the system. I would recommend this but let them know they don't want to use the tape that is attached.

when I received these I thought oh man very flimsy and the glue probably wont hold the weight of my spices but I was pleasantly surprised. so far they have held up very well. I was also concerned that the clips themselves seemed a little flimsy and would not stay in place to hold the jars but they have. I don't think you will be able to go from one size jar to another because the clips seem to retain the size and do not go back to orginal size.

these clips fell off the cabinet within minutes of me cleaning the door and sticking them on. This is no doubt the worst product I have ever bought from WD. This is worth a minus 10. I would not recommend this to my enemies let alone a friend. I might have just flushed the money down the toilet.

The idea is fantastic; but I have to agree with the others, don't use the adhesive tape provided. Once you put the spices in, the weight is too much for the adhesive that is provided. Get an industrial strength adhesive strip. I am ordering a second set to start fresh.